Application-Correct Rotor Size
2022-2026 GWM Tank 500 uses the OR6 Ø345 mm × 32 mm front rotor specification. Hi4-Z is not available.

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2022-2026 GWM Tank 500 OR6 Direct-Mount Front Big Brake KitDirect Mount Series Front Axle Off Road 6 Piston 2022 2026 GWM Tank 500 OR6 Direct Mount Front Big Brake Kit The TTSPORT OR6 front big brake kit is built for loaded GWM Tank 500 builds overland weight, larger all terrain tires, armor, winch, roof equipment, passengers, and recovery gear. A forged 6 piston direct mount caliper, 345 mm 32 mm high carbon cast iron rotors, and stainless steel braided lines deliver predictable pedal feel on long descents,
Direct-Mount Series · Front Axle · Off-Road 6-Piston
The TTSPORT OR6 front big brake kit is built for loaded GWM Tank 500 builds — overland weight, larger all-terrain tires, armor, winch, roof equipment, passengers, and recovery gear. A forged 6-piston direct-mount caliper, Ø345 mm × 32 mm high-carbon cast-iron rotors, and stainless-steel braided lines deliver predictable pedal feel on long descents, washboard roads, and daily street use.
A built Tank 500 rarely weighs what it did from the factory. Add passengers, recovery gear, fridge, water, fuel cans, sliders, bumpers, winch, and 33–35 in tires, and the front brakes are working much harder on every grade. The OR6 kit raises clamp force and thermal headroom so the pedal stays consistent during repeated speed checks, slow technical descents, and long highway tows back to camp.
2022-2026 GWM Tank 500 uses the OR6 Ø345 mm × 32 mm front rotor specification. Hi4-Z is not available.
Two-piece forged aluminum body with 40 mm × 4 and 43 mm × 2 pistons for stable pressure under heavy vehicle load.
One-piece heat-insulated pistons with dust boots help resist heat soak and keep trail grit away from the piston seal area.
Heat-treated high-carbon cast-iron rotors, internally vented, fixed, directional, and left/right specific.
PTFE inner liner, SUS304 stainless-steel braid, and PVC protective outer sheath help maintain firm pedal feel on rough access roads.
Direct-mount front configuration with vehicle-specific brake line fittings and no rotor hats or caliper brackets.
| Brake Caliper | |
|---|---|
| Series | Direct-Mount Series |
| Model / Application | OR6 |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | One-piece heat-insulated pistons with dust boots |
| Piston Diameter | 40 mm × 4 / 43 mm × 2 |
| Caliper Dimensions | L 301 mm × W 149 mm × H 130 mm |
| Total Piston Area | 79 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 4 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø340–355 mm × 32/34 mm |
| Brake Rotor | |
| Rotor Material | Heat-treated high-carbon cast iron |
| Axle Position | Front |
| Rotor Dimensions for This Application | Ø345 mm × 32 mm |
| Construction | One-piece rotor |
| Ventilation | Internally vented |
| Rotor Mounting | Fixed |
| Directional Design | Yes — left/right specific |
| Rotor Face Pattern | Wave Slot |
| Brake Pads | |
| Compatible Rotor Material | Iron / steel rotors only |
| Operating Temperature Range | 0–600 °C |
| Average Friction Coefficient | Average μ: 0.38; variation depends on temperature, line pressure, and rotor condition |
| Lines | |
| Brake Line Construction | Three-layer reinforced construction |
| Brake Line Material | PTFE inner liner / SUS304 stainless-steel braid / PVC protective outer sheath |
| Brake Line Fittings | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
| Vehicle Application & Rotor Mapping | |
| 2022-2026 GWM Tank 500 | 345 mm × 32 mm, Hi4-Z Not Available |
| Fitment & Installation | |
| Primary Vehicle Application | 2022-2026 GWM Tank 500, Hi4-Z Not Available |
| Model Years | GWM Tank 500: 2022-2026 |
| Axle | Front |
| Caliper Mounting Type | Direct mount |
| Minimum Wheel Size | 17 in or larger |
| Minimum Spoke Clearance | 91 mm |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
| Bedding-In Procedure | Required |
For 2022-2026 GWM Tank 500, the correct OR6 rotor specification is Ø345 mm × 32 mm. Hi4-Z is not available. Do not use the older Ø380 / 405 mm × 34 mm rotor-option layout for this application.
2 × OR6 forged 6-piston front calipers, left/right specific.
Brake pads for both front calipers, rated 0–600 °C and intended for iron / steel rotors.
2 × one-piece front rotors, Ø345 mm × 32 mm, heat-treated high-carbon cast iron, internally vented and left/right specific.
2 × vehicle-specific stainless braided brake lines with PTFE inner liner, SUS304 braid, and PVC protective outer sheath.
Vehicle-specific direct-mount hardware for GWM Tank 500 front-axle installation.
Direct-Mount Series uses one-piece rotors and direct-mount calipers. Rotor Hats and Caliper Brackets are not included because they are not used on this OR6 application.
OR6 requires 17 in or larger wheels with at least 91 mm of spoke clearance. Wheel diameter alone is not enough; spoke shape, offset, and inner barrel profile must be checked before ordering.
17 in or larger wheels are required.
Minimum spoke clearance: 91 mm. Aftermarket wheels with deep spokes or hub-side ribs may need additional clearance verification.
Application: 2022-2026 GWM Tank 500, front axle, with Ø345 mm × 32 mm rotor specification. Hi4-Z is not available.
Tell us your Tank 500 trim, wheel size, tire size, and added vehicle weight. We will confirm OR6 fitment and clearance before ordering.
Yes. This OR6 front kit is configured for 2022-2026 GWM Tank 500 applications. The correct rotor specification is Ø345 mm × 32 mm. Hi4-Z is not available.
OR6 requires 17 in or larger wheels with at least 91 mm of spoke clearance. Stock wheel clearance should still be verified with a clearance template before installation because spoke shape and barrel profile affect real fitment.
No. The GWM Tank 500 OR6 application uses Ø345 mm × 32 mm front rotors, but Hi4-Z is not available.
2022-2026 GWM Tank 500 uses Ø345 mm × 32 mm one-piece front rotors in the OR6 Direct-Mount Series. Do not use the older Ø380 / 405 mm × 34 mm rotor-option layout for this application.
No. This is a Direct-Mount Series OR6 application with one-piece rotors and direct-mount calipers. Rotor Hats and Caliper Brackets are not used on this configuration.
Yes. The 6-piston forged caliper, Ø345 mm × 32 mm high-carbon vented rotors, and braided lines add clamp force and thermal capacity for trucks running armor, winch, roof equipment, added cargo, and larger tires.
The included pads run 0–600 °C with an average μ of 0.38. They are balanced for mixed street, highway, towing, and off-road service and are intended for iron / steel rotors only.
Yes. A proper bedding-in procedure is required to transfer pad material evenly to the rotor face and reach stable friction performance.
The kit includes OR6 forged 6-piston front calipers, Ø345 mm × 32 mm one-piece directional rotors, brake pads, vehicle-specific stainless-braided brake hoses, and direct-mount hardware. Rotor Hats and Caliper Brackets are not used on this Direct-Mount Series configuration.
Tell us your Tank 500 trim, wheel size, tire size, and added vehicle weight. We will confirm OR6 fitment and clearance before ordering.